What causes stomach growling?received period for 4 months, negative preg test on day of period, but very worried. am i pregnant?

Intestines: The sensation of stomach growling is usually the movement of liquid, gas and stool through the intestinal tract. If your periods are normal and your pregnancy tests are negative then it does not seem like you are pregnant. You can always repeat a home pregnancy test. Consider starting birth control to prevent pregnancy scares. If you are worried about your digestive tract consider seeing a doctor